SEARCH ENGINES, SUBJECT DIRECTORIES  WIKIS,  and Social Media, Web 2.0 and Mobile APPs

Courtesy of Library of Congress
Search engines allow a user to search the world wide web, internet or a particular database for a word or words then returns records that match the search query.  All search engines are not created equal.   Some can run down sources quickly; others are as slow as molasses. Many now offer topical indexing by subject also known as Subject Directories.  Multiple or Meta-search engines perform searches using a variety of individual search engines. The following list of search engines, multiple search engines and subject directories have been considered effective tools in retrieving information from the internet.  For others, it is recommended that you consult the  Guides to Specialized Search Engines.

Subject Directories

Single Search Engines

Multiple Search Engines


Internet Subject Directories:

BUBL Link   selected internet resources arranged by subject and Dewey Decimal Classification,  maintained by the BUBL Information Service, Centre for Digital Library Research, Strathclyde University, Glasgow, Scotland,  United Kingdom.

Librarians'  Internet Index
now part of  ipl2 is searchable  directory of credible, reliable web resources selected by librarians from around the world.

Internet Public Library 2 (ipl2)    "ipl2 is a public service organization and a learning/teaching environment. To date, thousands of students and volunteer library and information science professionals have been involved in answering reference questions for our Ask an ipl2 Librarian service and in designing, building, creating and maintaining the ipl2's collections. It is through the efforts of these students and volunteers that the ipl2 continues to thrive to this day.

In January 2010, the website "ipl2: information you can trust" was launched, merging the collections of resources from the Internet Public Library (IPL) and the Librarians' Internet Index (LII) websites. The site is hosted by Drexel University's College of Information Science & Technology, and a consortium of colleges and universities with programs in information science are involved in developing and maintaining the ipl2."


Multiple (Meta) Search Engines:

Dogpile, despite its name, is the fastest of the mult- search  search engines; it returns data from search engines, news groups, etc., and also allows independent search of engines where numerous hits are recorded. Tate Library's top rated search engine. Also allows excellent reviews of both standard wire and business wire services...
Easy Searcher, allows one to search on six popular search engines and approximately 300 specialized search engines and databases.  The home page links to the site's two main sections:  Easy Searcher 1 and Easy Searcher 2...
MegaSpider, runs a close second in usefulness and, in one way, is even more valuable. Scrolling down, you can employ an option to turn your search term into any of a dozen languages and search non-English databases. Cool!
HotBot, claims to index 54 million documents...
Ixquick Ixquick searches 14 search engines at the same time. Fairly comprehensive, and results tend to be relevant.
Metacrawler, ranks results of findings and comes close to Dogpile in usefulness...
Virtual Search Engine, blows us away with 200 popular search engines and tools..
Webcrawler,"WebCrawler is simply the easiest way to find better search results from more of the Web."   Searches Google, Yahoo!, MSN, Ask, and others.

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Single Search Engines :

Bing  MIcrosoft's answer to Google and considered one of the fastest growing in number of searches.
"SurfWax helps you get the best grip on information from the Open Web -- providing the "best use" of relevant search results."
 Vivisimo  arranges results using "clustering technology" grouping similar websites together using textual content analysis.
**Google Scholar Built as a research tool to provide access to the more reliable,  peer reviewed, archival, and scholarly research available on the web. 
Google, the most popular search engine in the last few years and very comprehensive.  recently revised and improved search capability using clustering technology built on an algorithm known as ExpertRank.  Allows the user to retrieve  more relevant and credible results. 
 Yahoo, the first is still the best, largely due to its inclusiveness and its unparalleled topical listings...
SNAP.Com is also new and actually quite exciting.  searches can be specified to web, job listings.   Search results presented on a split screen with a frame to view the website image before selecting to view a particular result.
About.Com, used to be known as The Mining Co. and is noted for the use of real people, rather than robots, in determining links...
AltaVista, not only allows searching, but unique forms of searching, e.g., to find the image of a cheetah, type image: cheetah in the search box.
EasySearcher 1 is designed for net newbies...
Excite, is fast and ranks hits by percentage of applicability...
USAgov a gateway that indexes some 20,000 Web sites containing over a million pages of federal information...
Go Network, combines the Infoseek search engine with,, and Mr. Showbiz for this new portal...
Lycos, an old but vastly improved standard...
OneLook is a search engine for Dictionaries...
Starting Point, lives up to its name...
Yahoo! kids, Yahoo for children


 Citizendium   A Web 2.0 project that aims at credibility and quality of information and involves contributions from lay persons and credentialed experts alike.  All articles are signed by real names and all are required to register before contributing. 
Wikipedia online community encyclopedia.  This dynamic work in progress is a good place to begin gathering information on a topic but should not be used as a primary source of information for research papers.  Students are also encouraged to visit Citizendium.

Web 2.0


Social Media Sites


Mobile/Smart Phone Apps

AT&T App Center

Android Market Apps  for all U.S. government info imaginable! 

**Recommended as one good search tool to use as a supplement to TC  Library Research Databases and the TC Library book collections

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Here is a site if you want to learn more about search engines or keep up with their development:

Search Engine Watch...

NEW! The New York Times recent article by contributor, S Mackie 10 Simple Google Search Tricks may be helpful in constructing helpful searches on this popular engine...

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